content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.reactive4javaflow.impl.operators;
  
  import hu.akarnokd.reactive4javaflow.*;
  import org.junit.Test;
  
  import java.io.IOException;
  
  public class FolyamMapWhenTest {
  
      @Test
      public void normal() {
          Folyam.range(1, 5)
                  .mapWhen(Folyam::just)
                  .test()
                  .assertResult(1, 2, 3, 4, 5);
      }
  
      @Test
      public void normalConditional() {
          Folyam.range(1, 5)
                  .mapWhen(Folyam::just)
                  .filter(v -> true)
                  .test()
                  .assertResult(1, 2, 3, 4, 5);
      }
  
      @Test
      public void standard() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                  .mapWhen(Folyam::just),
                  1, 2, 3, 4, 5);
      }
  
  
      @Test
      public void standardHidden() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(item -> Folyam.just(item).hide()),
                  1, 2, 3, 4, 5);
      }
  
      @Test
      public void standard2() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(Folyam::just, 1),
                  1, 2, 3, 4, 5);
      }
  
      @Test
      public void standard3() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(Folyam::just, (a, b) -> a + b),
                  2, 4, 6, 8, 10);
      }
  
      @Test
      public void standard4() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(Folyam::just, (a, b) -> a + b, 1),
                  2, 4, 6, 8, 10);
      }
  
      @Test
      public void standard5() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhenDelayError(Folyam::just, (a, b) -> a + b, 128),
                  2, 4, 6, 8, 10);
      }
  
      @Test
      public void standard6() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhenDelayError(Folyam::just, (a, b) -> a + b, 1),
                  2, 4, 6, 8, 10);
      }
  
      @Test
      public void standard7() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(v -> Folyam.range(v, 2)),
                  1, 2, 3, 4, 5);
      }
  
      @Test
      public void emptyOuter() {
          TestHelper.assertResult(
                  Folyam.empty()
                          .mapWhen(Folyam::just)
                  );
      }
  
  
      @Test
      public void emptyInner() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(v -> Folyam.empty())
                  );
      }
  
  
      @Test
      public void emptyInnerHidden() {
          TestHelper.assertResult(
                  Folyam.range(1, 5)
                          .mapWhen(v -> Folyam.empty().hide())
          );
      }
  
      @Test
      public void mainError() {
          Folyam.error(new IOException())
                  .mapWhen(Folyam::just)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void mainErrorConditional() {
          Folyam.error(new IOException())
                  .mapWhen(Folyam::just)
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void innerError() {
          Folyam.just(1)
                  .mapWhen(v -> Folyam.error(new IOException()))
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void innerErrorConditional() {
          Folyam.just(1)
                  .mapWhen(v -> Folyam.error(new IOException()))
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void innerErrorHidden() {
          Folyam.just(1)
                  .mapWhen(v -> Folyam.error(new IOException()).hide())
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void innerErrorConditionalHidden() {
          Folyam.just(1)
                  .mapWhen(v -> Folyam.error(new IOException()).hide())
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
  
      @Test
      public void innerErrorDelayed() {
          Folyam.just(1)
                  .mapWhenDelayError(v -> Folyam.error(new IOException()))
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void innerErrorConditionalDelayed() {
          Folyam.just(1)
                  .mapWhenDelayError(v -> Folyam.error(new IOException()))
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void someInnerErrorDelayed() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(v -> {
                      if (v == 2) {
                          return Folyam.error(new IOException());
                      }
                      return Folyam.just(v);
                  })
                  .test()
                  .assertFailure(IOException.class, 1, 3);
      }
  
      @Test
      public void someInnerErrorDelayedConditional() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(v -> {
                      if (v == 2) {
                          return Folyam.error(new IOException());
                      }
                      return Folyam.just(v);
                  })
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class, 1, 3);
      }
  
      @Test
      public void mapperCrash() {
          Folyam.range(1, 3)
                  .mapWhen(v -> { throw new IOException(); })
                  .test()
                  .assertFailure(IOException.class);
      }
  
  
      @Test
      public void mapperCrashConditional() {
          Folyam.range(1, 3)
                  .mapWhen(v -> { throw new IOException(); })
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void mapperCrashDelayError() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(v -> { throw new IOException(); })
                  .test()
                  .assertFailure(IOException.class);
      }
  
  
      @Test
      public void mapperCrashConditionalDelayError() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(v -> { throw new IOException(); })
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void combinerCrash() {
          Folyam.range(1, 3)
                  .mapWhen(Folyam::just, (a, b) -> { throw new IOException(); })
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void combinerCrashConditional() {
          Folyam.range(1, 3)
                  .mapWhen(Folyam::just, (a, b) -> { throw new IOException(); })
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void combinerCrashDelayError() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(Folyam::just, (a, b) -> { throw new IOException(); })
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void combinerCrashConditionalDelayError() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(Folyam::just, (a, b) -> { throw new IOException(); })
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void normalLong() {
          Folyam.range(1, 1000)
                  .mapWhen(Folyam::just)
                  .test()
                  .assertValueCount(1000)
                  .assertNoErrors()
                  .assertComplete();
      }
  
      @Test
      public void normalLongConditional() {
          Folyam.range(1, 1000)
                  .mapWhen(Folyam::just)
                  .filter(v -> true)
                  .test()
                  .assertValueCount(1000)
                  .assertNoErrors()
                  .assertComplete();
      }
  
      @Test
      public void combinerCrashDelayErrorHidden() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(v -> Folyam.just(1).hide(), (a, b) -> { throw new IOException(); })
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void combinerCrashConditionalDelayErrorHidden() {
          Folyam.range(1, 3)
                  .mapWhenDelayError(v -> Folyam.just(1).hide(), (a, b) -> { throw new IOException(); })
                  .filter(v -> true)
                  .test()
                  .assertFailure(IOException.class);
      }
  
      @Test
      public void normalLongHidden() {
          Folyam.range(1, 1000)
                  .mapWhen(v -> Folyam.just(v).hide())
                  .test()
                  .assertValueCount(1000)
                  .assertNoErrors()
                  .assertComplete();
      }
  
      @Test
      public void normalLongConditionalHidden() {
          Folyam.range(1, 1000)
                  .mapWhen(v -> Folyam.just(v).hide())
                  .filter(v -> true)
                  .test()
                  .assertValueCount(1000)
                  .assertNoErrors()
                  .assertComplete();
      }
  
      @Test
      public void emptyLongHidden() {
          Folyam.range(1, 1000)
                  .mapWhen(v -> Folyam.empty().hide())
                  .test()
                  .assertResult();
      }
  
      @Test
      public void emptyLongConditionalHidden() {
          Folyam.range(1, 1000)
                  .mapWhen(v -> Folyam.empty().hide())
                  .filter(v -> true)
                  .test()
                  .assertResult();
      }
  }
  